Respuesta:
3x = -9 +25-25
3x= -9
x= -9/3
x= -3
6x-5x= 4-1
x= 3
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Respuesta:
3x = -9 +25-25
3x= -9
x= -9/3
x= -3
6x-5x= 4-1
x= 3
-9 +9=0
0=0
por lo tanto es verdadera
2) 6.(3)+ 1 = 5.(3) + 4
18 + 1 =. 15 + 4
19 = 19
verdadero